A dumb-bell consists of two identical small balls of mass $\frac{1}{2}$ kg each connected to the two ends of a 50 cm long light rod. The dumb-bell is rotating about a fixed axis through the centre of the rod and perpendicular to it at an angular speed of 10 rad/s. An impulsive force of average magnitude 5.0 N acts on one of the masses in the direction of its velocity for 0.10 s. Find the new angular velocity of the system.

Q. A dumb-bell consists of two identical small balls of mass 1/2 kg each connected to the two ends of a 50 cm long light rod. The dumb-bell is rotating about a fixed axis thorough the centre of the rod and perpendicular to it at an angular speed of 10 rad/s. An impulsive force of average magnitude 5⋅0 N acts on one of the masses in the direction of its velocity for 0⋅10 s. Find the new angular velocity of the system.

Q. A dumbell consists of two identical small ball of mass $\frac{1}{2}Kg$ each connected to the two ends of a $50Cm$ long light rod. The dumb bell is rotating about a fixed axis through the centre of the road and perpendicular to it at an angular speed $10rad{s}^{-1}$. An impulsive force of average magnitude $5N$ acts on one of the masses in the direction of its velocity for $0.1s$. Find the angular velocity of the system.

Q. A system consists of two identical small balls of mass $2kg$ each connected to the two ends of a $1m$ long light rod. The system is rotating about a fixed axis through the centre of the rod and perpendicular to it at an angular speed of $9rad/s$. An impulsive force of average magnitude $10N$ acts on one of the masses in the direction of its velocity for $0.20s$. Calculate the new angular velocity of the system.

Q. A system consists of two identical small balls of mass $2\text{kg}$ each connected to the two ends of a $1\text{m}$ long light rod. The system is rotating about a fixed axis through the centre of the rod and perpendicular to it at an angular speed of $9\text{rad/s}$. An impulsive force of average magnitude $10\text{N}$ acts on one of the masses in the direction of its velocity for $0.20\text{s}$. Calculate the new angular velocity of the system.

Q. A rod of mass $2\text{kg}$ and length $1\text{m}$ is lying in the horizontal plane and pivoted about its one end. Initially, it is rotating about its pivoted end (axis perpendicular to horizontal plane) with an angular velocity $2\text{rad/s}$. Suddenly, an angular impulse $\overrightarrow{J}$ is given to the rod, because of which its angular velocity becomes $10\text{rad/s}$. Find the magnitude of angular impulse $\overrightarrow{J}$.